chore: Check triage members max assignment is protected from being a mentor (hiero-ledger#1811)

Signed-off-by: AkshayKumarSahu <akshaykumar15031999@gmail.com>
Signed-off-by: Akshay Kumar <akshaykumar15031999@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: 3 people

.github/scripts/bot-assignment-check.sh

@@ -35,8 +35,26 @@ issue_has_gfi() {
   [[ "$has" == "true" ]]
 }
 
+# Count open assignments for a user
+# For triage users (mentors), excludes issues with 'mentor-duty' label
+# This allows mentors to be assigned to mentorship issues without consuming their assignment limit
 assignments_count() {
-  gh issue list --repo "${REPO}" --assignee "${ASSIGNEE}" --state open --limit 100 --json number --jq 'length'
+  local permission="${1:-none}"
+  
+  if [[ "$permission" == "triage" ]]; then
+    echo "Triage user detected — excluding mentor-duty issues from count." >&2
+    # For triage users, exclude issues with 'mentor-duty' label
+     gh api "repos/${REPO}/issues?per_page=100&page=1" \
+       -f assignee="${ASSIGNEE}" \
+       -f state=open \
+       --jq '.[] 
+            | select(.pull_request == null)
+            | select(any(.labels[]; .name == "mentor-duty") | not)
+            | .number' | grep -c . || echo 0
+  else
+    # For non-triage users, count all open assignments
+    gh issue list --repo "${REPO}" --assignee "${ASSIGNEE}" --state open --limit 100 --json number --jq 'length'
+  fi
 }
 
 remove_assignee() {
@@ -118,7 +136,7 @@ if is_spam_user; then
   echo "User is in spam list.  Applying restricted assignment rules."
 fi
 
-COUNT="$(assignments_count)"
+COUNT="$(assignments_count "$PERMISSION")"
 
 # Apply assignment rules
 if [[ "$SPAM" == "true" ]]; then

CHANGELOG.md

@@ -29,6 +29,7 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 - Format `tests/unit/endpoint_test.py` using black. (`#1792`)
 
 ### .github
+- Added triage members max assignment is protected from being a mentor in `.github/scripts/bot-assignment-check.sh`. (#1718)
 - Revert PythonBot workflow to restore previous stable behavior. (#1825)
 - Added GitHub Actions workflow to remind draft PR authors to mark ready for review after pushing changes. (#1722)
 - Fixed bot workflow runtime failure caused by strict `FAILED_WORKFLOW_NAME` validation. (`#1690`)